Ruislip Depot to Perivale is available here (NOT compatible with BVE2). 
1992 Stock also available on the same link.

White City to Liverpool Street / 1992 Stock V2 coming soon here (NOT compatible with BVE2/4).

Epping to Ongar v2 for BVE4 and openBVE is available here.
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Legacy releases

The original version of Epping to Ongar (and return) route for BVE2 is available here. 
Note it only works with BVE2 or openBVE.

Marble Arch to Holborn then Chancery Lane to Marble Arch is available here, compatible with BVE4 and openBVE only.

Shepherd's Bush to Marble Arch (BVE2 demo) is here. Requires Northern line v3 objects from here. BVE2 users also need 1992 Stock from here. Note this also works on openBVE.